Largest tributaries
Anguilliformes - Eels and morays
Salmoniformes - Salmons and Trouts
Mugiliformes - Mullets
Perciformes - Perches
Moroniformes - Temperate basses
Scombriformes - Mackerels
Gadiformes - Cods
Spariformes - Breams and porgies
Carangiformes - Jacks
Lamniformes - Mackerel sharks
Carcharhiniformes - Ground sharks
Orectolobiformes - Carpet shark
Myliobatiformes - Stingrays
Myxiniformes - Hagfishes
Tetraodontiformes - Puffers and filefishes
Dactylopteriformes - Flying gurnards
Lampriformes - Lamprids
Squaliformes - Sleeper and dogfish sharks
Pleuronectiformes - Flatfishes
Acanthuriformes - Surgeonfishes
Scorpaeniformes - Mail-cheeked fishes
Lophiiformes - Anglerfishes
Batrachoidiformes - Toadfishes
Aulopiformes - Grinners
Clupeiformes - Herrings
Acipenseriformes - Sturgeons and Paddlefish
Gasterosteiformes - Sticklebacks
Cyprinodontiformes - Toothcarps
Notacanthiformes - Spiny eels
Saccopharyngiformes - Swallowers and Gulpers
Myctophiformes - Lanternfishes
Beryciformes - Sawbellies
Ophidiiformes - Cusk-eels
Acropomatiformes - Oceanic basses
Labriformes - Wrasses
Rajiformes - Skates and rays
Gobiiformes - Gobies
Blenniiformes - Blennies
Hexanchiformes - Six-gill sharks
Trachiniformes - Weeverfishes
The Firth of Clyde is the mouth of the River Clyde. It is located on the west coast of Scotland and constitutes the deepest coastal waters in the British Isles (it is 164 metres deep at its deepest).
The firth is sheltered from the Atlantic Ocean by the Kintyre peninsula, which encloses the outer firth in Argyll and Ayrshire. The Kilbrannan Sound is a large arm of the Firth of Clyde, separating the Kintyre Peninsula from the Isle of Arran. Within the Firth of Clyde is another major island – the Isle of Bute. Given its strategic location at the entrance to the middle and upper Clyde, Bute played a vital naval military role during World War II.
At its entrance, the firth is about 26 miles (42 km) wide. At one area in its upper reaches, it is joined by Loch Long and the Gare Loch. This area includes the large anchorage off of Greenock that is known as the Tail of the Bank. Even where the sandbank narrows it, the Clyde is almost 2 miles (3.2 km) wide. Its upper tidal limit is at the tidal weir adjacent to Glasgow Green.
